package net.minecraft.world.gen.feature;

import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.block.BlockLeaves;
import net.minecraft.block.BlockNewLeaf;
import net.minecraft.block.BlockNewLog;
import net.minecraft.block.BlockPlanks;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;

public class WorldGenCanopyTree extends WorldGenAbstractTree {
	private static final IBlockState field_181640_a = Blocks.log2.getDefaultState().withProperty(BlockNewLog.VARIANT,
			BlockPlanks.EnumType.DARK_OAK);
	private static final IBlockState field_181641_b = Blocks.leaves2.getDefaultState()
			.withProperty(BlockNewLeaf.VARIANT, BlockPlanks.EnumType.DARK_OAK)
			.withProperty(BlockLeaves.CHECK_DECAY, Boolean.valueOf(false));

	public WorldGenCanopyTree(boolean p_i45461_1_) {
		super(p_i45461_1_);
	}

	public boolean generate(World worldIn, Random rand, BlockPos position) {
		int i = rand.nextInt(3) + rand.nextInt(2) + 6;
		int j = position.getX();
		int k = position.getY();
		int l = position.getZ();

		if (k >= 1 && k + i + 1 < 256) {
			BlockPos blockpos = position.down();
			Block block = worldIn.getBlockState(blockpos).getBlock();

			if (block != Blocks.grass && block != Blocks.dirt) {
				return false;
			} else if (!this.func_181638_a(worldIn, position, i)) {
				return false;
			} else {
				this.func_175921_a(worldIn, blockpos);
				this.func_175921_a(worldIn, blockpos.east());
				this.func_175921_a(worldIn, blockpos.south());
				this.func_175921_a(worldIn, blockpos.south().east());
				EnumFacing enumfacing = EnumFacing.Plane.HORIZONTAL.random(rand);
				int i1 = i - rand.nextInt(4);
				int j1 = 2 - rand.nextInt(3);
				int k1 = j;
				int l1 = l;
				int i2 = k + i - 1;

				for (int j2 = 0; j2 < i; ++j2) {
					if (j2 >= i1 && j1 > 0) {
						k1 += enumfacing.getFrontOffsetX();
						l1 += enumfacing.getFrontOffsetZ();
						--j1;
					}

					int k2 = k + j2;
					BlockPos blockpos1 = new BlockPos(k1, k2, l1);
					Material material = worldIn.getBlockState(blockpos1).getBlock().getMaterial();

					if (material == Material.air || material == Material.leaves) {
						this.func_181639_b(worldIn, blockpos1);
						this.func_181639_b(worldIn, blockpos1.east());
						this.func_181639_b(worldIn, blockpos1.south());
						this.func_181639_b(worldIn, blockpos1.east().south());
					}
				}

				for (int i3 = -2; i3 <= 0; ++i3) {
					for (int l3 = -2; l3 <= 0; ++l3) {
						int k4 = -1;
						this.func_150526_a(worldIn, k1 + i3, i2 + k4, l1 + l3);
						this.func_150526_a(worldIn, 1 + k1 - i3, i2 + k4, l1 + l3);
						this.func_150526_a(worldIn, k1 + i3, i2 + k4, 1 + l1 - l3);
						this.func_150526_a(worldIn, 1 + k1 - i3, i2 + k4, 1 + l1 - l3);

						if ((i3 > -2 || l3 > -1) && (i3 != -1 || l3 != -2)) {
							k4 = 1;
							this.func_150526_a(worldIn, k1 + i3, i2 + k4, l1 + l3);
							this.func_150526_a(worldIn, 1 + k1 - i3, i2 + k4, l1 + l3);
							this.func_150526_a(worldIn, k1 + i3, i2 + k4, 1 + l1 - l3);
							this.func_150526_a(worldIn, 1 + k1 - i3, i2 + k4, 1 + l1 - l3);
						}
					}
				}

				if (rand.nextBoolean()) {
					this.func_150526_a(worldIn, k1, i2 + 2, l1);
					this.func_150526_a(worldIn, k1 + 1, i2 + 2, l1);
					this.func_150526_a(worldIn, k1 + 1, i2 + 2, l1 + 1);
					this.func_150526_a(worldIn, k1, i2 + 2, l1 + 1);
				}

				for (int j3 = -3; j3 <= 4; ++j3) {
					for (int i4 = -3; i4 <= 4; ++i4) {
						if ((j3 != -3 || i4 != -3) && (j3 != -3 || i4 != 4) && (j3 != 4 || i4 != -3)
								&& (j3 != 4 || i4 != 4) && (Math.abs(j3) < 3 || Math.abs(i4) < 3)) {
							this.func_150526_a(worldIn, k1 + j3, i2, l1 + i4);
						}
					}
				}

				for (int k3 = -1; k3 <= 2; ++k3) {
					for (int j4 = -1; j4 <= 2; ++j4) {
						if ((k3 < 0 || k3 > 1 || j4 < 0 || j4 > 1) && rand.nextInt(3) <= 0) {
							int l4 = rand.nextInt(3) + 2;

							for (int i5 = 0; i5 < l4; ++i5) {
								this.func_181639_b(worldIn, new BlockPos(j + k3, i2 - i5 - 1, l + j4));
							}

							for (int j5 = -1; j5 <= 1; ++j5) {
								for (int l2 = -1; l2 <= 1; ++l2) {
									this.func_150526_a(worldIn, k1 + k3 + j5, i2, l1 + j4 + l2);
								}
							}

							for (int k5 = -2; k5 <= 2; ++k5) {
								for (int l5 = -2; l5 <= 2; ++l5) {
									if (Math.abs(k5) != 2 || Math.abs(l5) != 2) {
										this.func_150526_a(worldIn, k1 + k3 + k5, i2 - 1, l1 + j4 + l5);
									}
								}
							}
						}
					}
				}

				return true;
			}
		} else {
			return false;
		}
	}

	private boolean func_181638_a(World p_181638_1_, BlockPos p_181638_2_, int p_181638_3_) {
		int i = p_181638_2_.getX();
		int j = p_181638_2_.getY();
		int k = p_181638_2_.getZ();
		BlockPos.MutableBlockPos blockpos$mutableblockpos = new BlockPos.MutableBlockPos();

		for (int l = 0; l <= p_181638_3_ + 1; ++l) {
			int i1 = 1;

			if (l == 0) {
				i1 = 0;
			}

			if (l >= p_181638_3_ - 1) {
				i1 = 2;
			}

			for (int j1 = -i1; j1 <= i1; ++j1) {
				for (int k1 = -i1; k1 <= i1; ++k1) {
					if (!this.func_150523_a(p_181638_1_
							.getBlockState(blockpos$mutableblockpos.func_181079_c(i + j1, j + l, k + k1)).getBlock())) {
						return false;
					}
				}
			}
		}

		return true;
	}

	private void func_181639_b(World p_181639_1_, BlockPos p_181639_2_) {
		if (this.func_150523_a(p_181639_1_.getBlockState(p_181639_2_).getBlock())) {
			this.setBlockAndNotifyAdequately(p_181639_1_, p_181639_2_, field_181640_a);
		}
	}

	private void func_150526_a(World worldIn, int p_150526_2_, int p_150526_3_, int p_150526_4_) {
		BlockPos blockpos = new BlockPos(p_150526_2_, p_150526_3_, p_150526_4_);
		Block block = worldIn.getBlockState(blockpos).getBlock();

		if (block.getMaterial() == Material.air) {
			this.setBlockAndNotifyAdequately(worldIn, blockpos, field_181641_b);
		}
	}
}
